The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 2020
Filed:
Apr. 08, 2014
Beijing Tongyizhong Specialty Fibre Technology & Development Co., Ltd, Beijing, CN;
Abstract
Provided is a composite ballistic-resistant unit material, formed of an intersecting composite of N two layer structured units, 1≤N≥8, an organic thin film being attached to two sides thereof, the angle of intersection of each adjacent layer being 45°-90°; a first layer is a ballistic-resistant fibre unidirectional tape covered in a first resin adhesive, a second layer is a ballistic-resistant fibre unidirectional tape covered in a second resin adhesive, the tensile modulus of the first resin adhesive being lower than 6 MPa, and the tensile modulus of the second resin adhesive being higher than 6 MPa; the loss modulus of the first resin adhesive and the second resin adhesive, under the same conditions as the test frequency and strain value, at 30-40° C. is the same as the loss modulus of the ballistic-resistant fibre. When the strain sensitive rate of the ballistic-resistant fibre is at 2.4×10s, the dynamic tensile stress is at least 2.4 GPa, and the sound-wave conduction speed is at least 10000 m/s. The composite ballistic-resistant unit material uses two kinds of resin adhesive, respectively coated onto adjacent layers, and the softness and hardness of ballistic-resistant materials produced therewith is appropriate, having excellent ballistic-resistant performance.